318:, while the remaining piers are executed on driven piles. The superstructure consists of two longitudinal prefabricated girders of constant depth set 550 centimetres (220 in) apart made composite with the deck slab and cross-girders. Structurally, the superstructure is a 1,354.86-metre (4,445.1 ft) long continuous girder across 22 spans, tracing a horizontal and a vertical curve. The cross section of the superstructure consists of two solid I-section steel girders of constant depth.
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it was important to reduce weight of the structure as much as possible. Therefore, the design employs two weight-reducing elements: longitudinal steel girders and piers with cap beams at varying heights. The latter reduces volume of concrete used for construction of the piers thereby reducing weight of the structure while giving the bridge a curved, concave deck.
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The design of the bridge was initially in 66.5-metre (218 ft) spans, but the final layout was imposed by the particular soil conditions and the arrangement of the river bed and canals below the bridge. Since the soil supporting the bridge foundations has exceptionally low load carrying capacity,
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The deck structure stretches across 22 spans: 51.07 m (167.6 ft) + 15 x 66.5 m (218 ft) + 70.1 m (230 ft) + 2 x 50.01 m (164.1 ft) + 61.1 m (200 ft) + 42.6 m (140 ft) + 30.5 m (100 ft).
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The design of the pier foundations was further affected by the fact that the valley is a high quality agricultural area that had to be preserved as much as possible. The height of the reinforced concrete piers ranges from 13.45 metres (44.1 ft) to 40.03 metres (131.3 ft) and each of the
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and the wide Mirna River valley. It is 1,378 metres (4,521 ft) long and comprises two traffic lanes. The bridge has been open for traffic since June 2005. The bridge is one of the most significant structures on the motorway. The bridge was designed by
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285:, where the Mirna Bridge is located, was upgraded to motorway standards in June 2011. However, the works did not include construction of a parallel structure across the
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piers is topped by a cap beam. The piers comprise an I-cross section with the webs aligned with the bridge axis. Peripheral piers (P1, P2, P20, P21) are executed on
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which would carry the additional carriageway. Expansion of the bridge to a full motorway is planned to start in 2013 and be completed by 2015.
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338:) and summer (ASDT) traffic volumes are attributed to the fact that the bridge carries much tourist traffic to the
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Please help update this article to reflect recent events or newly available information.
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resorts. The traffic count is performed using analysis of motorway toll ticket sales.
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513:[Viaduct across Mirna on the Istrian expressway] (in Croatian). Gradimo
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623:[Istria gets the first kilometers of motorway. And the toll too.].
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675:"Traffic counting on the roadways of Croatia in 2009 - digest"
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621:"Istra dobila prve kilometre autoceste. I cestarinu također"
471:[Western arm of Istrian Y and the Mirna Bridge]
469:"Zapadni krak 'istarskog ipsilona' i most preko Mirne"
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Between Nova Vas and Višnjan interchanges; from 2009.
536:[Creator of the largest Croatian bridges].
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467:Tanja Vrančić, Branko Nadilo (August 10, 2004).
511:"Vijadukt preko Mirne na istarskoj brzoj cesti"
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301:A view of the Mirna Bridge from the A9 motorway
326:Traffic is regularly counted and reported by
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750:Buildings and structures in Istria County
595:"Full profile motorway construction plan"
334:. Substantial variations between annual (
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651:. Hrvatske autoceste. Archived from
569:[The Y becomes a motorway].
440:"The Most Important Road Structures"
534:"Tvorac najvećih hrvatskih mostova"
532:Eduard Šoštarić (30 January 2006).
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546:from the original on 18 July 2012
649:"Croatian Motorways, pp.409-410"
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619:Silvana Fable (June 20, 2010).
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684:. May 1, 2010. Archived from
565:Darko Pajić (June 14, 2011).
479:(in Croatian). Archived from
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567:"Ipsilon postaje autocesta"
352:Mirna Bridge traffic volume
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740:Bridges completed in 2005
415:List of bridges by length
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52:Bridge in Istria, Croatia
29:This article needs to be
745:Toll bridges in Croatia
245:is located between the
97:45.329461°N 13.626652°E
393:2722 Mirna toll plaza
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277:The A9 route between
735:Plate girder bridges
253:interchanges of the
102:45.329461; 13.626652
316:shallow foundations
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175:Girder bridge
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156:Maintained by
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714:Mirna Bridge
693:. Retrieved
686:the original
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272:Zlatko Šavor
243:Mirna Bridge
242:
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197:Longest span
181:Total length
59:Mirna Bridge
38:
30:
420:A9 motorway
293:Description
287:Mirna River
267:Mirna River
255:A9 motorway
128:Mirna River
118:A9 motorway
116:2 lanes of
100: /
75:Coordinates
729:Categories
719:Structurae
599:BINA Istra
477:Građevinar
444:BINA Istra
426:References
328:BINA Istra
218:Statistics
160:BINA Istra
151:Most Mirna
88:13°37′36″E
85:45°19′46″N
41:April 2021
572:Novi List
579:June 26,
544:Archived
539:Nacional
409:See also
343:Adriatic
283:Kanfanar
247:Nova Vas
231:Location
659:May 17,
399:10,821
340:Istrian
263:Croatia
251:Višnjan
205:History
184:1,378 m
142:Croatia
124:Crosses
113:Carries
31:updated
396:4,659
259:Istria
210:Opened
200:70.1 m
192:10.1 m
171:Design
138:Istria
134:Locale
689:(PDF)
678:(PDF)
484:(PDF)
473:(PDF)
379:Notes
189:Width
697:2010
661:2010
635:2010
606:2010
581:2011
552:2010
519:2010
492:2010
451:2010
374:ASDT
369:AADT
359:Road
336:AADT
281:and
279:Umag
249:and
241:The
223:Toll
213:2005
716:at
390:A9
257:in
226:yes
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39:(
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
